edgepaint 命令

常用示例

说明

edgepaint assigns colors to the edges of a graph so that adjacent or near-parallel edges receive maximally distinct colors. It expects a graph that has already been laid out (for example by dot or neato), since the algorithm uses the geometric positions of edges to decide which pairs should differ. Colors are written into each edge's `color` attribute and the modified DOT is emitted on stdout (or to the file given with -o). The default `lab` color scheme produces perceptually distinct hues; alternative Brewer schemes give a fixed small palette.

参数

-o _FILE_

Write output to FILE instead of stdout.

--accuracy=_e_

Precision for finding maximally different coloring at each node. Default 0.01.

--angle=_a_

Color two edges differently if their incidence angle is less than _a_ degrees. Default 15.

--color_scheme=_c_

Color palette: `rgb`, `gray`, `lab` (default), a list of hex colors, or any Brewer scheme name (e.g. `accent8`, `set19`).

--lightness=_l1,l2_

Lightness range, only with `lab`. Integers 0-100. Default `0,70`.

--random_seed=_s_

Seed for the randomized coloring. Negative values run multiple iterations with different seeds.

--share_endpoint

Edges that share a node and are nearly anti-parallel (~180 degrees apart) are not treated as conflicting.

-v

Verbose output.

-?

Print usage and exit.